This combo includes two Ar-15 / M4 uppers, one chambered in .223 Wylde or 5.56 NATO, and the other in .300 AAC Blackout. Choose one BCG and Charging Handle, to fit both and interchange the uppers on your lower at any time!
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Sale!
Double Upper Combo! 5.56/.223 & .300 Blackout
$589.99
-26%Design two Ar-15 uppers that fire different calibers for a steal of a price! This will include two Ar15 upper assemblies, one BCG and one Charging Handle.